LEGUMINOSZ, 501 
q Be osnre to the air. It has no particular taste or smell, but 
: is astringent, and communicates a fine red — to water and 
3 Baloo hol, : 
Chemical composition.—The colouring matter of Sappanwood 
_ appears from Bolley’s investigations to be identical with 
4 _Chevreul’s brazillin obtained from brazilwood. Pure sappan 
q red or brazillin, C16H**05, crystallizes from absolute alcohol — 
_ in colourless rhombohedrons, or in short monoclinic prisms 
_ containing 67°11 per cent. of carbon, 5°43 hydrogen, and 27-46 
_ oxygen; from hydrated alcohol or from aldehyde, in mono- 
_ clinic needles, containing 2 C'6H'4 053H? O, turning brown 
at 90° and giving off 6°61 per cent. of water; and no more at 
j 120°. Brazillin resembles hematoxylin, and like it is soluble 
_inether, alcohol, and water. Alkalies produce a carmine-red 
4 coloration, which disappears when the liquid is warmed with . 
_ Zine dust, but returns on exposure to the air. On boiling with 
_ peroxide of lead and water a strong fluorescence is developed. — 
_ By oxidation brazilein is produced. 
_  Oommerce.—Two qualities are found in the market—viz., 
7 Singapuri and Dhunsari, of about the same value, Rs. 42 per 
_ kandy of 7 ewts. A third aay from Ceylon is only valued © 
_ at -Rs. 30 per kandy. 
_ The imports into Bombay in 1881- 82 were 1987 cwts., 
_ valued at Rs. 11,816. 
GOA POWDER. 
_ Mr. D.S. Kemp (Pharm. Journ, (2), V., 345,) was the first 
_ to draw attention to this substance in 1864 as a secret remedy 
used by the native Christians of Portuguese India for a 
disease of the skin called Gajkaran in Marathi. It was then 
_ only occasionally offered for sale in Bombay at Rs. 12 to 30. 
4 3 der, Goa Powder, or Brazil Powder. The exact date of its first 
introduction into India is not known, but like many other 
| _ Products of the New World, it was spel mesdaned Py the 
_ for a tin containing 1 Ib., and was known as Ringworm Pow- 
